I'll share my story with a long-term abuse case. It started on the Simone Biles article. An editor kept trying to question whether or not she had attended University of the People. There were numerous media accounts where she reported or was reported as doing such, but he would dismiss these all on the claim that they were "promotional." Over the ensuing weeks, I engaged him in discussion on the talk page along with…
Like, editing "farts" into articles is one thing, but some of these people sound seriously dangerous.